In sourcing discussions, PLC-RSC-24DC-21-21 is often placed next to SMPS Phoenix, Phoenix 2966207 and Phoenixcontact Phoenix Contact Industrial Ethernet Switches so procurement teams can align budgets and technical requirements effectively.
Phoenix PLC-RSC- 24DC/21-21 Relay Module
The Phoenix PLC-RSC- 24DC/21-21 Relay Module (Part No: 2967060 ) offers a 24 V DC nominal input voltage UN, 20.2 V DC ... 33.6 V DC (20 °C) input voltage range, polarized Drive, 8 ms typical response time. Manufactured by Phoenix under the Phoenix Relay Module category, this model belongs to the Phoenix PLC Series.
| Brand | Phoenix Contact |
| Product Type | Relay Module |
| Model Number | PLC-RSC- 24DC/21-21 |
Phoenix PLC-RSC- 24DC/21-21 Relay Module – Technical Specifications
| Specification | Value |
|---|---|
| Product type | Relay Module |
| Product family | PLC-INTERFACE |
| Application | Universal |
| Mechanical service life | 3x 107 cycles |
| Insulation | Safe isolation: Control side / contact side |
| Overvoltage category | III |
| Pollution degree | 3 |
| Maximum power dissipation for nominal condition | 0.43 W |
| Test voltage (Winding/contact) | 4 kV AC (50 Hz, 1 min., winding/contact) |
| Test voltage (Changeover contact/changeover contact) | 2.5 kV AC (50 Hz, 1 min., changeover contact/changeover contact) |
| Rated surge voltage | 6 kV |
| Nominal input voltage UN | 24 V DC |
| Input voltage range | 20.2 V DC ... 33.6 V DC (20 °C) |
| Drive and function | monostable |
| Drive (polarity) | polarized |
| Typical input current at UN | 18 mA |
| Typical response time | 8 ms |
| Typical release time | 10 ms |
| Protective circuit | Reverse polarity protection; Polarity protection diode |
| Operating voltage display | Yellow LED |
| Contact switching type | 2 changeover contacts |
| Type of switch contact | Single contact |
| Contact material | AgNi |
| Maximum switching voltage | 250 V AC/DC (The separating plate PLC-ATP should be installed for voltages larger than 250 V (L1, L2, L3) between identical terminal blocks in adjacent modules. Potential bridging is then carried out with FBST 8-PLC... or ...FBST 500...) |
| Limiting continuous current | 6 A |
| Maximum inrush current | 15 A (300 ms) |
| Min. switching current | 10 mA (5 V) |
| Interrupting rating (ohmic load) max. | 140 W (at 24 V DC) |
| Switching capacity | 2 A (at 24 V, DC13) |
| Connection method | Screw connection |
| Stripping length | 8 mm |
| Conductor cross section rigid | 0.14 mm² ... 2.5 mm² |
| Conductor cross section flexible | 0.14 mm² ... 2.5 mm² |
| Conductor cross section AWG | 26 ... 14 |
| Tightening torque | 0.6 Nm ... 0.8 Nm |
| Width | 14 mm |
| Height | 80 mm |
| depth | 94 mm |
| Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V0 (Housing) |
| Degree of protection (Relay) | RT III (Relay) |
| Degree of protection (Relay base) | IP20 (Relay base) |
| Ambient temperature (operation) | -40 °C ... 60 °C |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Temperature | D |
| Humidity | A |
| Vibration | B/C |
| EMC | B |
| Enclosure | Required protection according to the Rules shall be provided upon installation on board |
| Low Voltage Directive | Conformance with Low Voltage Directive |
| Electromagnetic compatibility | Conformance with EMC directive |
| Standards/regulations | IEC 60947-5-1 |
| Mounting Type | DIN rail mounting |
| Mounting position | any |
| Contact Connection type | - |
| Output fuse | - |
| Degree of protection (Installation location) | - |
The Phoenix Contact PLC-RSC-24DC/21-21 (Part No: 2967060) Relay Module belongs to the trusted PLC-INTERFACE product family and is built to deliver consistent reliability in automation systems. This Phoenix 2 Changeover Contacts Relay operates efficiently at a nominal input voltage of 24 V DC and supports a wide input voltage range from 20.2 V DC to 33.6 V DC, ensuring stable functionality across voltage fluctuations. The relay features two changeover contacts constructed with AgNi contact material to provide low contact resistance and superior conductivity. It is equipped with reverse polarity protection and a polarity protection diode, safeguarding connected circuits from transient surges. The module dissipates only 0.43 W of power and boasts a mechanical service life of 3×10⁷ cycles, proving its reliability for continuous use. With screw connections, DIN rail mounting, and a compact housing design, this relay simplifies installation while maintaining IP20-rated protection and insulation between the control and contact sides.
The Phoenix Contact Relay Module PLC-RSC-24DC/21-21 (2967060) is ideal for use in automation cabinets, PLC outputs, and electrical control systems requiring reliable 24 V DC switching. This Phoenix 2 Changeover Contacts Relay delivers accurate performance in load control, safety interlocks, and power distribution units. Engineers rely on its compact 14 mm width and vibration-resistant design for dense panel assemblies. With an 8 ms response time and 10 ms release time, it ensures fast, precise switching in dynamic industrial environments. Maintenance engineers appreciate its ease of wiring, visual operation indicator LED, and robust construction. The PLC-RSC-24DC/21-21 supports reliable operation under wide temperature ranges from -40°C to 60°C, making it suitable for use in manufacturing, process plants, and electrical distribution systems.
The Phoenix Contact PLC-RSC-24DC/21-21 (2967060) is built for durability, electrical safety, and efficiency in industrial control systems. Compact yet powerful, the PLC-RSC-24DC/21-21 ensures precise 24 V DC signal switching for automation panels and PLC interfaces. The plc-rsc-24dc-21-21-2967060 model provides long service life, stable performance, and dependable isolation between circuits. Industrial engineers and maintenance professionals trust the Phoenix Contact PLC-RSC-24DC/21-21 for consistent quality and proven reliability in demanding automation environments.
